Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6161653 | Ropeless governor mechanism for an elevator car | Clement A. Skalski, Samuel C. Wan | 2000-12-19 |
| 5799755 | Linear motor transfer of cab horizontally between elevator and bogey platforms | Samuel C. Wan, Jack M. Thompson, Jr., Vlad Zaharia, Anthony Cooney, Terry M. Robar +4 more | 1998-09-01 |
| 4374435 | Passenger entertainment system transducer failure detector | Richard F. Lach | 1983-02-15 |
| 4309653 | Elimination of line impedance error in a three-wire probe interface | Timothy F. Stack | 1982-01-05 |
| 4298959 | Digital information transfer system (DITS) receiver | Frank D. Sundermeyer | 1981-11-03 |